echo 'Ok<br>'; } else { echo 'Erro<br>'; } if (divisao(5, 2) == 5 / 2) { echo 'Ok<br>'; } else { echo 'Erro<br>'; } if (multiplicacao(5, 2) == 5 * 2) { echo 'Ok<br>'; } else { echo 'Erro<br>'; } if (soma(5, multiplicacao(2, 3)) == 5 + 2 * 3) { echo 'Ok<br>'; } else { echo 'Erro<br>'; } if (soma(subtracao(8, 3), 5 + 8 - 3)) { echo 'Ok<br>'; } else { echo 'Erro<br>'; } if (soma(divisao(9, 3), multiplicacao(4, 2))) { echo 'Ok<br>'; } else { echo 'Erro<br>'; } ?> </pre>
<?php echo '<br>'; echo subtracao(10, 5); function subtracao($num1, $num2) { return $num1 - $num2; }
<?php include "operacoes.php"; $x = 2; $y = 4; echo "x+y = " . soma($x, $y) . ",<br>"; echo "x-y = " . subtracao($x, $y) . "<br>"; echo "x*y = " . multiplicacao($x, $y) . "<br>"; echo "x/y = " . divisao($x, $y) . "<br>";